单项选择题
Australia began to assume its modern
configuration
by the Eocene Epoch, some 50 million years ago, when Antarctica broke away and drifted southward.
A.status
B.sphere
C.shape
D.situation
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单项选择题
The prevailing wind is the wind direction most often observed during a given time period. Wind speed is the rate at which the air moves past a stationary object.
A.motionless
B.massive
C.flexible
D.noticeable
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单项选择题
The Second Hague Disarmament Conference of 1907 was marked more by discord than discourse, a sign of the deteriorating world situation.
A.facilitating
B.upgrading
C.justifying
D.worsening
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